References of "Steemans, Philippe"
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See detailGivetian megaspores from Libya and Belgium
Steemans, Philippe ULg; Breuer, P.; Gerrienne, Philippe ULg et al

Conference (2007)

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See detailRecent advances in palynology
Steemans, Philippe ULg; Javaux, Emmanuelle ULg

in Carnets de Géologie = Notebooks on Geology (2007), Memoir 2007/01

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See detailMiddle Devonian (Givetian) megaspores from Belgium (Ronquières) and Libya (A1-69 borehole)
De Ville de Goyet, F.; Breuer, P.; Gerrienne, Philippe ULg et al

in Carnets de Géologie = Notebooks on Geology (2007), CG2007(M01/02), 68-73

Preliminary results are presented on newly discovered megaspore assemblages recovered from Givetian localities at Ronquières, Belgium, and a borehole (A1-69) drilled in the Ghadames Basin, Libya, by SHELL ... [more ▼]

Preliminary results are presented on newly discovered megaspore assemblages recovered from Givetian localities at Ronquières, Belgium, and a borehole (A1-69) drilled in the Ghadames Basin, Libya, by SHELL in 1959. The miospore biostratigraphy of the Ronquières and of A1-69 borehole sections has been published (Ville de Goyet, 2005; Gerrienne et alii, 2004; Loboziak & Streel, 1989; Loboziak et alii, 1992; Streel et alii, 1990). [less ▲]

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See detailA classification of spores by support vectors based on an analysis of their ornament spatial distribution - An application to Emsian miospores from Saudi Arabia
Breuer, P.; Dislaire, G.; Filatoff, J. et al

in Carnets de Géologie = Notebooks on Geology (2007), CG2007(M01/02), 9-15

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See detailMiospores of the Palaeozoic
Steemans, Philippe ULg

Scientific conference (2007)

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See detailPalyWeb: A palynomorph database project on the web
Steemans, Philippe ULg; Breuer, P.

in Steemans, Philippe; Javaux, Emmanuelle (Eds.) Recent Advances in Palynology (2007)

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See detailLiège, Belgium: 50 years of palynology
Steemans, Philippe ULg

Report (2007)

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See detailSilurian and Early Lower Devonian miospores from South America
Steemans, Philippe ULg; Rubinstein, C.

Conference (2006)

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See detailPalyWeb
Steemans, Philippe ULg; Breuer, P.

Conference (2006)

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See detailOvulate structure early origin and diversification: did something happen during the Givetian?
Prestianni, Cyrille ULg; Ville de Goyet, F. de; Breuer, P. et al

Conference (2006)

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See detailComputer Assisted Spore Classification based on Ornament Spatial Distribution Analysis – An Application to Emsian Miospores from Saudi Arabia
Dislaire, Godefroid; Breuer, Pierre; Filatoff, John et al

Conference (2006)

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See detailMorphological variability of some Devonian miospores
Breuer, P.; Filatoff, J.; Steemans, Philippe ULg

in Palaeozoic palynology in space and time. CIMP general meting (2006)

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See detailEnigmatic Givetian palynomorphs
Steemans, Philippe ULg

Report (2006)

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See detailDisused Palaeozoic regional stages from Belgium: Devillian, Revinian, Salmian, Gedinnian and Burnotian.
Dejonghe, L.; Herbosch, A.; Steemans, Philippe ULg et al

in Geologica Belgica (2006), 9(1-2), 191-197

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See detailMorphometric analysis of proposed evolutionary lineages of Early Devonian land plant spores
Breuer, P.; Stricanne, L.; Steemans, Philippe ULg

in Geological Magazine (2005), 142(3), 241-253

Early Devonian miospore assemblages from 'La Gileppe' (Eastern Belgium) include five varieties of trilete spore belonging to the genus Emphanisporites. These five varieties show a continuous variation of ... [more ▼]

Early Devonian miospore assemblages from 'La Gileppe' (Eastern Belgium) include five varieties of trilete spore belonging to the genus Emphanisporites. These five varieties show a continuous variation of their morphological characteristics. The variation in morphological characteristics can be related to the evolution of morphological features and allows us to define the Emphanisporites micromatus Morphon. A statistical evaluation of this population highlights the interdependence of almost all morphological parameters. This study proves the increase in size of ornamental and structural parameters over several million years. The biometric changes and the progressive replacement of older morphotypes by younger ones indicate that a temporal link exists between these different varieties. Two phylogenetic hypotheses for the E. micromatus Morphon are proposed. This morphological evolution is so far observed only on the Eastern Old Red Sandstone Continent and defines a palaeophytogeographic sinuosus-zavallatus Province. [less ▲]

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See detailLochkovian (earliest Devonian) miospores from the Solimoes Basin, northwestern Brazil
Rubinstein, C.; Melo, J. H. G.; Steemans, Philippe ULg

in Review of Palaeobotany and Palynology (2005), 133(1-2), 91-113

Eighteen core samples from PETROBRAS well 1-JD-1-AM (Jandiatuba area. Solimoes Basin. northwestern Brazil) have been studied for miospores. Fifty-three species are identified. This assemblage is ... [more ▼]

Eighteen core samples from PETROBRAS well 1-JD-1-AM (Jandiatuba area. Solimoes Basin. northwestern Brazil) have been studied for miospores. Fifty-three species are identified. This assemblage is tentatively correlated with the Z Phylozone of the BZ Oppel Zone (Steemans, P., 1989. Palynostratigraphie de l'Eodevonien dans l'ouest de l'Europe. Professional Paper. Memoires Explicatifs pour les Caries Geologiques and Mineralogiques de la Belgique, 27, pp. 453.), dated late Lochkovian, This is in accordance with previous age determinations based on chitinozoans and acritarchs. Numerous representatives of the miospore genus Dictyotriletes are observed. These enable recognition of the Dictyotriletes emsiensis morphon. an informal classification unit which includes Dictyotriletes granulatus, D. emsiensis, Dictyotriletes cf. subgranifer, specimens previously misassigned to D. subgranifer and some Dictyotriletes spp. provisionally left in open nomenclature. Since all intermediate forms from typical D. granulatus to typical D. emsiensis coexist. it is currently difficult to determine the base of "F" Interval Biozone in South America as originally defined in Western Europe. It is suggested. therefore. that the base of the "Ems" Biozone defined in Brazil cannot be correlated with the base of die "E" Biozone. Instead. it be included in an interval of uncertainty ranging from the European "Si" to "E" Biozones. Indeed. the underlying "NsZ" Biozone from South America, contains species not known below the "Si" Biozone. Here, the D. emsiensis morphon Assemblage Zone is erected, which may, be coeval with the "N" through "E" Biozones of Western Europe. The PISA palynoflora from the Parana Basin is also attributed to this new biozone. However, in the absence of species observed in the "BZ" Biozone (and also in the Solimoes Basin). the PISA assemblage could be somewhat older than that of well 1-JD-1-AM. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailThe Middle-Devonian proto-ovule Runcaria heinzelinii Stockmans 1968
Gerrienne, Philippe ULg; Meyer-Berthaud, B.; Fairon-Demaret, Muriel ULg et al

Conference (2005)

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See detailPre-Cambrian to Palaeozoic Palaeopalynology and Palaeobotany
Steemans, Philippe ULg; Javaux, Emmanuelle ULg

in Carnets de Géologie = Notebooks on Geology (2005), Mémoir 2005/02

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See detailStratigraphic palynology of Devonian boreholes from northern Saudi Arabia
Breuer, P.; Al-Ghazi, A.; Filatoff, J. et al

in Carnets de Géologie = Notebooks on Geology (2005), Memoir 2005/02, CG2005 M02/01

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